• Title/Summary/Keyword: $Cu_3(BTC)_2$

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Facile Syntheses of Metal-organic Framework Cu3(BTC)2(H2O)3 under Ultrasound

  • Khan, Nazmul Abedin;Jhung, Sung-Hwa
    • Bulletin of the Korean Chemical Society
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    • v.30 no.12
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    • pp.2921-2926
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    • 2009
  • Cu-BTC[$Cu_3(BTC)_2(H_2O)_3$, BTC = 1,3,5-benzenetricarboxylate], one of the most well-known metal-organic framework materials (MOF), has been synthesized under atmospheric pressure and room temperature by using ultrasound. The Cu-BTC can be obtained in 1 min in the presence of DMF (N,N-dimethylformamide), suggesting the possibility of continuous production of Cu-BTC. Moreover, the surface area and pore volume show that the concentration of DMF is important for the synthesis of Cu-BTC having high porosity. The morphology and phase also depend on the concentration of DMF : Cu-BTC cannot be obtained at room temperature in the absence of DMF and aggregated Cu-BTC (with low surface area) is produced in the presence of high concentration of DMF. It seems that the deprotonation of benzenetricarboxylic acid by base (such as DMF) is inevitable for the room temperature syntheses.

Solvothermal Synthesis and Characterization of Cu3(BTC)2 Tubular Membranes Using Surface Modified Supports (표면 개질된 지지체를 이용한 Cu3(BTC)2 튜브형 분리막의 용매열 합성 및 특성분석)

  • Noh, Seung-Jun;Kim, Jinsoo
    • Korean Chemical Engineering Research
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    • v.52 no.2
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    • pp.214-218
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    • 2014
  • In this study, nanoporous $Cu_3(BTC)_2$ membranes were synthesized on macroporous alumina tube supports by solvothermal method. It is very difficult to prepare uniform and crack-free $Cu_3(BTC)_2$ layer on macroporous alumina support by in situ solvothermal method. In this study, continuous and crack-free $Cu_3(BTC)_2$ tubular membranes could be obtained by in situ solvothermal process after surface modification of alumina support. The surface modification was conducted by spraying Cu precursor solution on the alumina support heated at $200^{\circ}C$. The prepared $Cu_3(BTC)_2$ tubular membranes were characterized by XRD, FE-SEM and gas permeation experiments. $H_2$ permeance through $5{\mu}m$ thick $Cu_3(BTC)_2$ tubular membrane was calculated to be $7.8{\times}10^{-7}mol/s{\cdot}m^2{\cdot}Pa$ by single gas permeation test, with the ideal selectivities of $H_2/N_2=11.94$, and $H_2/CO_2=12.82$.

Preparation of Cu2(btc)3-AAO Hybrid Membrane by Layer-by-layer Technique (Layer-by-layer 기법을 통한 Cu2(btc)3-AAO 하이브리드 분리막의 제조)

  • Yoo, Hyeonseok;Choi, Jinsub
    • Journal of the Korean institute of surface engineering
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    • v.51 no.1
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    • pp.21-26
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    • 2018
  • The $Cu_2(btc)_3$ metal-organic frameworks (MOF) coated anodic aluminum oxide (AAO) membrane was successfully prepared by layer-by-layer technique using hand spray method. It was confirmed that the $Cu_2(btc)_3$ layer, which has the pore sized in 2-3 nm, on surface of AAO exhibited the polycrystalline thin film structure by XRD analysis. More than 100 repetitive spray cycles were required to obtain more robust and thick MOFs on AAO and it was possible to uniformly coat both the top and bottom surfaces of the AAO. It should be noted that the MOFs also could be coated on surface of pores resulting in reduce the size of pore from 52 nm to 32 nm.

Synthesis of Metal-Organic Framework material Cu-BTC and its application for $CO_2$ adsorption (유기 금속 Framework Cu-BTC의 합성 및 이산화탄소 분리 응용)

  • Peng, Mei-Mei;Hemalatha, Pushparaj;Ganesh, Mani;Venkatachalam, Kandan;Oh, Han-Seok;Jang, Hyun-Tae
    • Proceedings of the KAIS Fall Conference
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    • 2011.05a
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    • pp.147-150
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    • 2011
  • A copper-based metal organic framework (MOF) named Cu-BTC, also known as HKUST-1, was successfully synthesized by using a solvothermal method. The properties of the Cu-BTC sample were characterized with Powder X-ray diffraction (XRD) for phase structure, Thermogravimetric analysis (TGA) for thermal stability, Scanning electron microscopy (SEM) for crystal structure, and Nitrogen adsorption-desorption for pore textural structure. The analysis results displayed that the Cu-BTC sample exhibited a good crystal structure with uniform size of octahedral particles. The BET data revealed a high surface area of $1457 \;m^2g^{-1}$ and a pore volume of $0.60\; cm^3g^{-1}$. The Cu-BTCs ample was also studied for $CO_2$ adsorption and exhibited a maximum $CO_2$ adsorption capacity of 170 mg/g of the sorbent (3.8 mol/kg) at $25^{\circ}C$.

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Optimization of synthesis conditions and $CO_2$ capture capability of Cu-BTC Metal-Organic Framework (이산화탄소 흡착용 Cu-BTC MOF 합성 최적화)

  • Peng, Mei Mei;Hemalatha, Pushparaj;Ganesh, Mani;Jang, Hyun-Tae
    • Proceedings of the KAIS Fall Conference
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    • 2011.12a
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    • pp.200-203
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    • 2011
  • A copper-based metal organic framework (MOF) named Cu-BTC, also known as HKUST-1, was synthesized by using a solvothermal method at various synthesis temperature, time and pressure. The obtained samples were characterized with Powder X-ray diffraction (XRD) for phase structure, scanning electron microscopy (SEM) for crystal structure, and nitrogen adsorption-desorption for pore textural structure. The Cu-BTC sample was also studied for $CO_2$ adsorption. The analysis results displayed that the sample synthesized at the condition of temperature: $120^{\circ}C$, synthesis time: 12 hours, pressure: 1 bar exhibited a good crystal structure with uniform size of octahedral particles. The BET data revealed a high surface area of 1741.7 $m^2g^{-1}$ and a pore volume of 0.7137 $cm^3g^{-1}$and exhibiteda maximum $CO_2$ adsorption capacity of 170 mg/g of the sorbent at $25^{\circ}C$.

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Fluorescence Sensing Properties of Thiazolobenzo-crown Ether Incorporating Coumarin

  • Lee, Sang-Hoon;Helal, Aasif;Kim, Hong-Seok
    • Bulletin of the Korean Chemical Society
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    • v.31 no.3
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    • pp.615-619
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    • 2010
  • A new coumarin-thiazolobenzo-crown ether based fluorogenic chemosensor BTC (1) was reported. The ion-selective binding properties of 1 with different alkali, alkaline earth metals and transitional metals were investigated in an ethanol-DMSO system. BTC (1) showed the highest binding constant toward $Hg^{2+}$ over $Ag^+$, $Pb^{2+}$ and $Cu^{2+}$.